<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form method="post" action="/upload2" enctype="multipart/form-data">
        <!-- 名字要对应 multipe 表示多文件上传 -->
        <input type="file" name="files" multiple>
        <input type="submit" value="submit">
    </form>
</body>
</html>